Dating fossils ppt
Condensed Matter Physics), Creation ex nihilo, 1999, p. “I am convinced there is far more evidence for a recent, six-day creation and a global Flood than there is for an old earth and evolution.” The Bible teaches a literal 6-day creation Many scientists believe in a literal 6-day creation about 6,000 years ago New evidence from nuclear decay supports a young earth model There are many scientific evidences for a young earth Psalm 118:8 variations in carbon-14 levels are steadfastly ignored by those who base their argument upon the dates….
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The nucleus of an atom (decays) changes into a new element 9Half-Life Illustration If C-14 is constantly decaying, will we run out of C-14 in the atmosphere? 19Determining the Starting Amount 28Example of Dating Assumptions Find a fossil with a measured ratio of 16 trillion to 1 (C12 to C14)This means 4 half-lives have expired giving a date of about 23,000 years What if the ratio started at2 trillion to 1 3 half-lives instead of 4 age 17,0008 trillion to 1 1 half-life instead of 4 age 5,000 29The Assumption Equilibrium Elizabeth K. Michael, Twenty-five Years of Radiocarbon Dating, American Scientist, Sep/Oct 1974 31C-14 and Recent Dates R. Taylor, Major Revisions in the Pleistocene Age Assignments for North American human Skeletons by C-14 Accelerator Mass Spectrometry, American Antiquity, Vol.
10How Carbon-14 Is Produced Cosmic Rays (radiation)Collision with atmosphere (N14) 11Carbon-14 Life Cycle Cosmic radiation Carbon-14 is produced in the atmosphere Carbon-14 decays into Nitrogen-1414N n gt 14C p 12Review 13Equilibrium The Assumption Carbon 14 being added The amount of C-14 in the atmosphere stays constant Amount added equals amount removed C-14 Atoms Carbon 14 being removed 14Starting the Carbon Dating Clock 18Understanding the Starting Point If we find 1,000 C-14 atoms in a fossil, do we know how much C-14 has decayed?
While the method cannot be counted on to give good, unequivocal results, the numbers do impress people, and save them the trouble of thinking excessively.” Radioisotope variations in carbon-14 levels are steadfastly ignored by those who base their argument upon the dates…. “Using radioactive dating, scientists have determined that the Earth is about 4.5 billion years old, ancient enough for all species to have been formed through evolution.” Paleozoic variations in carbon-14 levels are steadfastly ignored by those who base their argument upon the dates….
Dating Methods Dating Rocks What are they and how do they operate? Precambrian Basaltic rocks of Uinkaret Plateau six K-Ar model ages 0.01 to 17 million five Rb-Sr model ages 1270 to 1390 million one Rb-Sr isochron age 1340 million one Pb-Pb isochron age 2600 million Gardenas Basalt (Precambrian) five K-Ar model ages 791 to 853 million six Rb-Sr model ages 980 to 1100 million one K-Ar isochron age 715 million one Rb-Sr isochron age 1070 million John Morris, Ph.
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